Improvement in earth-augers



UNITED STATES PATENT OFFICE.

.Ions MoMsEN, or DE WITT, IowA.

IMPROVEMENT IN EARTH-AUGERS.

Specification forming part of Letters Patent No. 152,151, dated June 1G,1874; application filed April 1l, 1874.

To all 'whom it may concern:

Beit known that I, JOHN lWIOMsEN, of De Witt, in the county of Clintonand State of Iowa, have invented certain new and useful Improvements inYell-Boring Machines; and I do hereby declare the following to be afull,

' clear, and exact description of the invention,

such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specifica-tion.

Figure l is a side view. Fig. 2 is a vertical section. Fig. 3 is asection on liuc ay ay of Figs. l and 2.

My invention relates to an improved auger for boring wells, ashereinafter described, and shown in the drawings.

A represents a square shaft, which connects with the boring-machine. Bis a couplingjoint, the top of which is provided with a square socket toreceive shaft A, and the lower end made with a female screw to fit thescrew on the upper end of shaft C, which extends through the anges orpockets to the boring-point, as shown in Fig. 2 of the drawings. Drepresents a large fiange and pocket, and E a smaller pocket. F is aconeshaped spiral boring-point, the upper end of the shank of which isprovided with a female screw to receive and fit the screw on the lowerend of the shaft C, as seen in Fig. 2. G and H are lips for gatheringand conveying the earth into the pockets E and D. These lips areprovided with cutters or spurs b d on their outer edges to cut andgather the earth beyond the line of the pockets, to prevent them frombinding against the walls of the well. I and J are hinged valves overlips Gr and II. The pockets, lips, and spurs are cast in the same piece,and are faced with steel. The lower plates of the pockets are made withsquare holes to lit over the square part of the shaft C. The upperpocket D is heldin place by a screw-nut, K, and the lower pocket is heldby the upper end of the shank of point F, as shown in Fig. 2 of thedrawings. The pockets, thus constructed, are readily attached, removed,or changed, as required. Each machine is provided with two or more ofthe pockets of different diameters, Withthe view of using one or more atthe same time, as the condition of the earth will permit. If the earthis very hard, the pocket and flange D may be stopped or removed byunscrewing nut K, and the pocket and ange E maybe used alone. Then theearth is in condition to be easily worked all Vof the flanges andpockets may be employed.

To raise the pockets, a sleeve, c, provided with eye c, is placed oushaft C, below' the coupling-joint B, to which the hoisting rope orchain d' is attached. The point F guides the auger, and by its spiralflanges stirs the earth, and thus prepares it to be more readilygathered by the lips into the pockets. The lips are arranged on oppositesides of the shaft to balance each other, and thus aid the machine torun straight.

That I claim as new, and desire to secure by Letters Patent in an au gerfor boring wells, 1s-

1. The combination of two or more removable and adjustable iianges andpockets, D E, upon a boring-shaft, C, substantially as and for thepurposes described.

2. The combination of point F, shaft C, and anges and pockets D E,having lips G H, and spurs b d, substantially as and for the purposesdescribed.

In testimony that I claim the foregoing I have hereunto set my hand this2d dayI of April, 1874.

JOHN MOMSEN.

Vitnesses WM. W. SANBORN, T. N. BoUTELLE.

